Enlargement of complete two-dimensional band gap by using photonic crystal heterostructure

• Published in: Applied physics. B, Lasers and optics Vol. 81; no. 4; pp. 465 - 467
• Main Authors: WANG, D. D, WANG, Y. S, ZHANG, X. Q, HE, Z. Q, YI, L. X, DENG, L. E, ZHANG, C. X, HAN, X
• Format: Journal Article
• Language: English
• Published: Berlin Springer 01.08.2005
• Subjects: Band spectra; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Heterostructures; Mathematical analysis; Optical materials; Optics; Optimization; Photonic bandgap materials; Photonic crystals; Photonics; Physics; Spectra; Two dimensional; Energy gap; Photonic band gap; Crystal lattices; Dielectric materials; Two dimensional structure; Photonic crystals; Bandwidth; Theoretical study; Plane waves; Heterostructures
• ISSN: 0946-2171; 1432-0649
• DOI: 10.1007/s00340-005-1882-6

A two-dimensional photonic crystal heterostructure, which consists of two photonic crystals of a square lattice of circular columns with reverse dielectric configurations, is proposed. Photonic band gap properties are calculated using a plane-wave method and the transmission spectra are obtained. After optimization, the relative width of the complete band gap reached 13.8% based on the simple unit-cell shape and crystal lattice. The photonic crystal heterostructure opens up new ways of engineering photonic band gap materials and designing photonic crystal devices.